[Bldg-sim] Ground Source VRF with Energy Recovery

[Duggin, Cory]

Basically, IESVE is modifying the WLHP curves to the performance curves of the water-cooled VRV.  The heat recovery would be shown through the common water loop in this case.  When modeling air-cooled VRV/VRF in IESVE, you setup a CHW loop with a part load chiller curve for the condensing unit.  Then engage condenser heat recovery to an air-air heat pump model for heat recovery VRV/VRF.  It turns out pretty well.
http://www.daikinac.com/content/resources/software-tools/


Cory Duggin, PE, LEED AP BD+C
Associate/Energy Modeling Wizard, j.g.
[cid:image001.jpg at 01D0E4C9.DCF3D0B0]
TLC Engineering for Architecture
direct:

615-346-1939



From: Shane Wells [mailto:shane at hpengineeringinc.com]
Sent: Tuesday, September 01, 2015 2:59 PM
To: Duggin, Cory <Cory.Duggin at tlc-eng.com>; bldg-sim at lists.onebuilding.org
Subject: RE: Ground Source VRF with Energy Recovery

That was my thoughts for estimating this with trace - modifying the equipment curves. Do you know if IESVE is able to model the refrigerant loop heat recovery for simultaneous heating and cooling as well?

Thanks,

Shane Wells, EI
Mechanical Systems Designer

hp  e n g i n e e r i n g , i n c .
479.899.6370  ext. 371

From: Duggin, Cory [mailto:Cory.Duggin at tlc-eng.com]
Sent: Tuesday, September 01, 2015 1:50 PM
To: Shane Wells <shane at hpengineeringinc.com<mailto:shane at hpengineeringinc.com>>; bldg-sim at lists.onebuilding.org<mailto:bldg-sim at lists.onebuilding.org>
Subject: RE: Ground Source VRF with Energy Recovery

Daikin recently put out a document describing how to model water cooled VRV in IESVE with their performance curves.  You could either assume a stable water temperature from the ground field or create a custom profile for the ground return temp.

Cory Duggin, PE, LEED AP BD+C
Associate/Energy Modeling Wizard, j.g.
[cid:image005.jpg at 01D0E4C9.A7306330]
TLC Engineering for Architecture
direct:

615-346-1939



From: Bldg-sim [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Shane Wells
Sent: Tuesday, September 01, 2015 7:16 AM
To: bldg-sim at lists.onebuilding.org<mailto:bldg-sim at lists.onebuilding.org>
Subject: [Bldg-sim] Ground Source VRF with Energy Recovery

I am a trace user and looking for a solution for modeling ground source VRF with energy recovery. The software says that it is currently one of Trace's limitations. Does anyone have suggestions for estimating this in Trace or another software?

Thanks,

Shane Wells, EI
Mechanical Systems Designer

hp  e n g i n e e r i n g , i n c .
1800 S. Osage Springs Drive
Suite 110
Rogers, Arkansas 72758
479.899.6370  ext. 371
www.hpengineeringinc.com<http://www.hpengineeringinc.com/>
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